Diet for an animal is certainly good, but what about the pain that a dog experiences when it has cancer, medications can also cause severe harm to health in a large dose, and so I would still test the possibilities of CBD products for the treatment of pain syndromes in dogs. [removed off-topic link and text]
Outbreak of Multidrug-Resistant Campylobacter Infections Linked to Contact with Pet Store Puppies
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https://www.cdc.gov/campylobacter/outbreaks/puppies-9-17/index.html
Multistate Outbreak of Multidrug-Resistant Campylobacter Infections Linked to Contact with Pet Store Puppies